Dwight teacy



(No Model.)

UTRACY.

RALWAY FROG.

No. 303,076. Patented Aug. 5, 1884. l

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PATENT i DW'IGHT TRACY, OF SUFFERN, NE-V YORK.

RAl LWAY-FROG.

sPnCIPICATIQN forming pari of Letters Patent No. 393,076, dated August5, 1.884,

Application filedl September 2U, 41393. (No model.)

To CLZZ whont it many concern: f

Be it known that I, DWIGHT TRACY, of Suffern, in the county of Rocklandand State of NenT York, have invented a new and useful Improvement inRailway-Frogs, of which the following is a specification. v

My invention relates to what are known as yoke-frogs, in which thefrog-point rails and wing-rails are secured together and in properrelative position by means of yokes, which embrace the rails andclamping parts, consisting of distance-pieces or spacingblocks, with orWithout Wedges, inserted between the point-rail and Wing-rails andbetween the Wing-rails and the npturned ends of the yoke.

The principal objects of my invention are to enable the same blocks andwedges, if the lat- Y ter are used, to readily adept themselves toWing-rails having various angles of divergence, so that they will form aperfect fit between the rails and between the yoke and the rails, and toenable said blocks 'and Wedges to be readily secured so as to hold theWing-rails` at the desired angle of divergence without danger of theirWorking loose; also, to give the frog a slight degree oi' elasticityunder the Weight of the trnimand to cause atightens ling up or increaseof grip oi' the yokes and clamping parts by the Weight ot" a passingtrain.

The invention consists in the combination. with the point-rail andwingrails of frog, of a yoke and a block fitting the end thereof` thebearing-surfaces of the yoke and block being curved or rounded in ahorizontal plane, so that the block will readily adept itself to theangle et which the adjacent wing-rail` crosses the yoke, and saidbearingsurfaces being also preferably rounded or curved in a vert-icaldireotion.

The invention also consists in the combination, with the rails and yokeof a frog, of the blocks or clamping parts between the Wingrails andtheends of the yoke, and other clamp ing parts or blocks placed between theWingrails, and having their surinces, which are in Contact with eachother, curved or rounded in a horizont-itl direction.

of n frog, of a central iilling or distance block iitting .and receivingWithin it the frog-point, and having its opposite sides curved orrounded, and other blocks between the centra-l block and the Wing-rails,and curved or rounded to it the opposite sides of said-central block.

yThe invention also eonsistsin the combination, with the rails and yokeof a frog, of iilling or distance blocks between the Wing-rails, outsideblocks fitting between the wing-rails and the ends of the yoke, andlocking rods or bolts, one end of cach of Whichprojects through thewing-rail and engages with a filling or distance block,`vvhile the otherend is engaged with an outside block7 whereby the several parts are heldin place.

The invention also consists in the combination, with the rails and yokeof a frog, of a block and Wedge fitting between a Wing-rail and the endof the yoke, end e locking-rod having one end engaging with the block atthe point of the Wedge and the other end engaging with the head of theWedge, whereby the wedge is prevented from Working loose.

The invention also consists in the combination, with the Wing-rails of afrog, of a yoke for confining seid rails in place, and blocks fittingbetween the ends of said yoke and the wing-mils, the benring-surlhces ofsaid yoke and blocksv being rounded or curved in a vertical direction,and the yoke having supportingbearings at the ends only, and beingarched or curved upward between the ends. This construction gives theyoke n slight degree of elasticity, and causes the rounded 4or curvedends of the yoke to more tightly embrace and confine the blocks andrails when the yoke is deected by the weight of a passing train.

In the accompanying dra-wings, Figure l is a plan of a. frog embodyingmy invention. Fig. 2 is a transverse section on the line :v Fig. 1'.Fig. 3 is a similar section on the line y y, Fig. l; ond Fig. 4 is ahorizontal section of a frog embodying my invention in a modiiied forni.l

Similar letters of reference designate corresponding parts in all thegures.

Referring to all the figures, A designa-tes the The invention alsoconsists in the combination, `with the frog-point, Wing-rails, and yokepoint-rnil, A the frog-point7 and B the Wingrails of the frog.

ICO

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C C G2 designate the yokes, any number of which may be employed to holdthe .rails in their proper positions.

I will first describe the construction shown 5 in Figs. 1, 2, and 3.

Between the frog-point A and wing-rails B are filling or distance blocksD D, which in this instance extend from the yoke C t-o the yoke C', butseparate blocks for each yoke might be employed. The wing-rails B arekept at a proper distance from the frog-point A by the blocks D. rlheends ofthe yokes C C Cz are turned up in the usual way, and between theends of the yokes C C and the wing-rails B are fitted blocks E, whichhold the wing-rails in proper place. The outer sides of the blocks Iland the surfaces `of the yokes on which they bear are` curved or roundedin a horizontal direction, as shown in Fig. 1, and are also preferably,though not necessarily, curved or rounded in a vertical direction, asshown in Figs. 2 and 3. Hence it will be seen the blocks will readilyadjust themselves in the yokes in a horizontal direc tion to suitdiiierent angles of divergence of the wing-rails B, the angle ofdivergence being controlled or governed by the angles of the frog-pointA.

In applying the yokes C C they, after the blocks D E are in place, areforced up on the diverging wing-rails until they come to a tightbearing, and are held against slipping back by means of locking keys orrods F, which lie between J[he blocks E and the wing-rails, and one end,a, of each of which extends through the web b of the rail and into thefitting-block D, while the other end, c, is bent over the end of theblock E. The locking keys or rods F have their bent ends a insertedthrough the web of the rails before the yoke is forced up on the rails,and after the yoke is forced up to its proper position the ends c of therods or keys F are bent outward over the ends of the blocks E.

In lieu of bending the end c of the rod F, the lattermay extend througha hole in the block E at a little distance from its inner side, and havea nut applied to it, so as to bear against the end of the block. Thetightening of the nuts on the two rods F will draw the yoke up fartheronto the diverging wing-rails. 'Ihe yoke C2 is applied at the narrowestpart of the-frog'.

Between the wing-rails B is a block, D, and on the outer side of eachrail, and between it and the adjacent end ofthe yoke C2, are a wed ge,E', and a block, E. The ends of the yoke and the outer sides oftheblocks E are curved both in a horizontal and vertical direction, asbefore described, and the several parts are held together by tighteningup the wedges E. Between each wedge and its adjacent block is alocking-rod, F, which rests in a groove in one or theother of saidparts, and after tightening up the wedge, one end, d, of the rod is bentover the block at the point of the wedge, and

the other end, d', is bent over the head of the wedge. By this means theloosening of the wedges is prevented.

As clearlyshown in Figs. 2 and 3, the yokes C C C2 havesupportingbearings e at the ends only, and between said bearing-pointsare curved upward or arched, so that they will be out of Contact withthe ties. This curving or arching of the yokes is produced by thetightening ofthe yokes on the frog, either by driving up the yokes orwedges or byshrinking on the yokes, and as the yoke has bearingpoints atthe ends only, it will be somewhat elastic and will yield under theweight of a train. This yielding will tend to bring the ends of the yoketogether, and thereby will more tightly clamp together the partsembraced by the yoke.

In thefrog shown in Fig. 4 the construction of the yokes C C C2, theoutside blocks, E, the Wedge E, and the locking-rods F F is the same asbefore described; but a different construction of filling or distanceblocks is employed.

In the yoke G there are two filling-blocks, D2 D3 on each side of thefrog-point A, and these blocks have their adjacent LAfaces curved orrounded in a horizontal direction, so as to adjust themselves readily todifferent angles ofthe frog-point and wing-rails.

In the yoke C there are three filling-blocks, D2 D2 D4, between the twowing-rails B, the central block, D4, being notched so as to receive andiit the frog-point A', and the surfaces of said blocks, which bear oneach other, are curved or rounded, as above described, and for a likepurpose. The blocks D2 D2 in the two yokes C G may be connected by rodsD5.

, In the yoke C2 there are two filling-blocks, D2 D, between thewing-rails B, and the surfaces of these blocks which bear on each otherare curved or rounded in a horizontal direction, as above described.

It will be understood that the curved bearing-surfaces of the yoke endsand outside blocks, E, and the curved bearing-surfaces of thefilling-blocks D2 Drs D are of great importance, as by this means I amenabled with blocks and yokes of the same size and form to securetogether the frog-rails, no matter what the degreeof divergence withinwide limits.

I am aware of Patent No. 197 ,827, granted December 4, 187 7 to VilsonB. Chisholm, for improvement in rail-joints, and do not here claimanything shown therein as of my invention.

Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, with the point-rail and wing-rails of a frog, of ayoke and a block f1tting the end thereof, the bearing-surfaces of thesaid yoke and block being curved or rounded in a horizontal direction,substantially as and for the purpose described.

2. The combination, with the point-rail and wing-rails of a frog, of ayoke and a block fitting the end thereof, the bearing-surfaces of IOOsaid yoke and block being curved or rounded inboth a horizontal andvertical direction, sub stantially as yand for the purpose described.

3. The combination, with the rails and yoke of a frog, of blocks betweenthe wing-rails, and the ends of the yoke and other biocks placed betweenthe wing-rails, and having their surfaces, which are in contact witheach other, curved or rounded in a horizontal direction, substantiallyas and for the purpose described.

4. The combination, with the frog-point, Wing-rails, and yoke of a frog,of a central filling or distance block, fitting and receiving within itthe frog-point, and having its opposite sides curved or rounded, andother blocksy between the central bioek and wing-rails, and curved orrounded to fit the said central block, substantially as described.

5. The combination, with the rails and yoke of a frog, of filling ordistance blocks between the wing-rails, outside blocks fitting betweenthe wing-rails and the ends of the yoke, and locking rods or bolts, oneend of each of which projects through the wingrail, while the other endis engaged with an outside block, substantially as described.

6. The combination, with the rails and yoke of a frog, of a block, E,and wedge'E, tting between a Wing-rail and the end of the yoke, and alocking-rod, F, having one end engag ing with the block at the point ofthe wedge A DVIGHT TRACY.

V'Vitnesses:

FREDK. HAYNEs, CHANDLER HALL.

